| Place | Post Code |
|---|---|
| Mahrajganj Urf Pahifatehpur, Kosi) | 852101 |
| Mohamadpur, Kosi) | 852115 |
| Pandukia Milik, Kosi) | 852115 |
| Parsaha, Kosi) | 852115 |
| Parsi, Kosi) | 852115 |
| Peernagar, Kosi) | 852115 |
| Rajpur Sarsandi, Kosi) | 852115 |
| Rakhia Patti, Kosi) | 852115 |
| Rasna, Kosi) | 852115 |
| Sarauni Kala, Kosi) | 852101 |
| Shahpur, Kosi) | 852115 |
| Shyam, Kosi) | 852220 |
| Sindwari, Kosi) | 852115 |
| Siswapatti, Kosi) | 852115 |
| Tema, Kosi) | 852115 |
| Temabhelwa, Kosi) | 852115 |
| Postal Codes in Madhepura | |
|---|---|
| Alamnagar | |
| Bihariganj | |
| Chausa | |
| Gamharia | |
| Ghailarh | |
| Gwalpara | |
| Kishanganj | |
| Kumarkhand | |
| Madhepura | |
| Murliganj | |
| Puraini | |
| Shankarpur | |
| Singheshwar | |